We went to the Sealife Aquarium this past week. This is the underside of a starfish that was clinging to the side of one of the aquariums. Nice aquarium! I did no adjustments to the color.
Taken with my Olympus TG4 on microscope mode. My settings were ISO 1600, f/3.8, 1/8sec, at 11.8mm. Applied Topaz Adjust’s Detail Filter and a little denoising.